Furnace keeps running

Just replaced the thermostat and its turned off and gas furnace is still running
i have a american standard freedom 90 what all wires do i need hooked up for
just heat there is a "y" , "w", "r", "g", "c"

Typical homemoaners, only half the info. I would assume those are the
terminals on the new thermostat? How many wires do you have and what
color are they? Normally red is one side of the transformer and white
is heat. Connecting those would turn the furnace on to heat.
r - red tranformer one side
w - white heat
y - yellow cool
g - green fan
c - other side of the transformer

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